37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

71°
H 72°
L 51°
NNW
5mph
Low tide
7:08 pm

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, October 24, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 4h 43m at 7:08 pm (0.3 ft)
Next high tide (tomorrow) : 12:45 am (8.3 ft)
Sunset today : 6:19 pm
Sunrise tomorrow : 7:25 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 1802

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:407.96:52-0.96:332.05:197:04New Moon1Sat
2Sun1:377.87:35-1.27:152.55:187:04New Moon2Sun
3Mon12:2910.52:337.68:18-1.37:593.05:177:05New Moon3Mon
4Tue1:0510.23:307.59:01-1.28:463.45:167:06Waxing Crescent4Tue
5Wed1:439.74:287.39:47-0.99:383.65:157:07Waxing Crescent5Wed
6Thu2:249.25:297.110:35-0.610:423.85:147:08Waxing Crescent6Thu
7Fri3:118.56:307.111:29-0.211:593.75:137:09First Quarter7Fri
8Sat4:067.97:257.212:260.15:127:10First Quarter8Sat
9Sun5:117.28:087.41:193.51:240.35:117:11First Quarter9Sun
10Mon6:256.88:417.72:283.02:160.65:107:12First Quarter10Mon
11Tue7:406.59:088.03:242.53:020.95:097:12First Quarter11Tue
12Wed8:516.49:348.54:101.83:421.25:087:13Waxing Gibbous12Wed
13Thu9:546.59:598.94:511.24:191.65:077:14Waxing Gibbous13Thu
14Fri10:536.710:259.45:270.54:542.05:067:15Waxing Gibbous14Fri
15Sat11:476.910:539.86:02-0.15:302.45:057:16Full Moon15Sat
16Sun12:407.16:37-0.66:062.85:047:17Full Moon16Sun
17Mon1:317.37:15-1.16:453.25:047:18Full Moon17Mon
18Tue2:237.47:55-1.47:263.45:037:18Full Moon18Tue
19Wed12:3810.43:157.48:39-1.68:133.65:027:19Waning Gibbous19Wed
20Thu1:2210.34:097.49:27-1.69:063.75:017:20Waning Gibbous20Thu
21Fri2:1210.05:047.410:19-1.410:123.75:017:21Waning Gibbous21Fri
22Sat3:099.45:587.611:15-1.211:333.55:007:22Third Quarter22Sat
23Sun4:148.76:488.012:13-0.84:597:22Third Quarter23Sun
24Mon5:307.97:338.51:013.01:10-0.34:597:23Third Quarter24Mon
25Tue6:557.28:159.22:202.32:050.24:587:24Third Quarter25Tue
26Wed8:206.98:549.83:261.42:570.94:587:25Waning Crescent26Wed
27Thu9:406.89:3110.34:220.53:461.54:577:26Waning Crescent27Thu
28Fri10:517.010:0710.65:12-0.34:342.14:577:26Waning Crescent28Fri
29Sat11:547.310:4410.75:58-0.95:212.64:567:27New Moon29Sat
30Sun12:527.56:41-1.26:073.14:567:28New Moon30Sun
31Mon1:457.77:22-1.46:543.44:557:28New Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

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Is this week a spring tide or neap tide in Upper Guadalupe Slough, CA?

Upper Guadalupe Slough, CA is currently in a spring phase. Tonight's moon is 98% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Upper Guadalupe Slough, CA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Upper Guadalupe Slough, CA?

Tide predictions for Upper Guadalupe Slough, CA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Upper Guadalupe Slough, CA?

Tide data for Upper Guadalupe Slough, CA is sourced from NOAA Station #9414549. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414549.

What is the moon phase in Upper Guadalupe Slough, CA tonight?

Tonight the moon over Upper Guadalupe Slough, CA is Full Moon (98% illuminated). This places Upper Guadalupe Slough, CA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA